US1864596A - Valve - Google Patents

Description

J.-E, JONES June 28, 1932.

VALVE Filed May 6, 1931 2 Sheets-Sheet l mmvroa Jon .E. Jo/vEs M mi A TTORNEYS.

June 28, 1932. JONES 1,864,596

VALVE Filed May 6. 1951 2 Sheets-Sheet 2 YINVENTOR.

Jon/v E. Jam's ATTORNEYS.

' the line 7-7 of Fig.6; and

with a seat can a. Jon-as, orsramormnn, were;

Barron or Z muracruanm conm ormmaii" om," a 00m v'nvn' a nc atioamea 0. m1. sum 30'. v collar 14, or otherw ise secured to th v This invention relates to valves and more. particularly to the mechanism for opening andclosing the valve. g

The princi al object of the invention is the 8 provision o v positively and automatically acting means actuated by a simple rotary movement of the actuating member-to raise the valve memberfrom its seat and thereafter turn it'from closed to 0 n position. Other and further objects will be apparent from the following specification and claims. H

In the accompanying drawings whi h 11.-

flustrate one embodiment of the invention as M applied to a plug cock type of valve:

ig. 1 is a plan view oi the valve; 4 Fig. 2 is a section substantially on line 2-2 of Fig. 1 showing the parts in the position they occupy when the valve is closed and 29 seated;

- Fig. 3 is'a section substantially on line 3-3 Fig. 4 1s a view similar toF-ig. 3 but showing the parts in the positionthey occupy when the valve has been raised from its seat;

39 in atnodified form;

g. 7 is a sectional view substantially on Figs. 8 and 9 are views similar to Fig. be; respectively showing the parts in the os1 tion they occupy when the valvehas een raised from its seat and when ithas been turnedtoopen position.

Referring to Figs'l'to 5, inclusive, 1 designates the valve casing which is provided 2 to receive -a plug 3having the customary opening eadapted when the valve is in open iosition to registerwith the open ings 550i e valve The casingll 1s providedwith' a cover 7 through. who the .able :10 wit aclcing follower-11 prevents the escape of uid a'round the A oke 12is' mounted 'ol'r ilhe cover and is a hold place by thecover bolts 13. The stem 9 is provided 1 11m its length with;

key to leave plufgin o osition. of the valve lug extends. A suit-,.

stein as at 15. The outer end of the stem is threaded as. indicated at 16- and m 'a nut-'17 'rotatably su in the yo e 12 first 20, squared or otherwise shaped to receive a wrench. The inner end of nut 17 is provided with a flange 21. As will be clear from Fi '2, flanges 19 and 21 b'y their engagementwit opposite sides of collar 22 which is threaded into the yoke 12 hold nut 17 against axial movement while permitting it to rotate.

Collar 14 is formed with two upwardly ex tending lugs 23 and24 which provide a ke way 25 between them for a key 26. When t e' valve plug is in closed and seated position,

the outer end\of key 26 (see Fig. 33 engages in a groove 27 formed in the depen ing skirt of yoke 12, to lock the stem 9 a ainst rotation.

A lug 28 extending from col ar 14.- en ages one leg of yoke'12 when the valve is in c osed position as shown in Fig. 3. Flange 21 of nut 17 is provided with a pin 30 positioned to engage lug 24. Since stem 9 is held against rotation by key 26, rotation oi nut 17 in a counterclockwise direction, asviewed in Fig.

' 3, will act to draw the stem upwardly into the nut to' raise the valve lug from its seat, this raising of the plug ta g lace during substantially a quarter turn 0 the nut or until pin 30 engages lug 24, as shown in Fig. 4. At the same time that pin 30 engages lug 24, a groove 32 formed in the flange 21 of nut 17 is positioned oppositethe inner end-of key 26 and continued rotation of -nut. 17 causes the oove 27 and enter groove 32,

as shown in ig. 4', thus'releasingthe stem from, the yoke and looking it to the nut. Fur- -i ther counterclockwise rotation of nut 17 there- I fjore turns stem-19 and valye 3 to 'open position, lug 28'striking aga 'the opposite oke leg (as shown in FIE-5) to stop the y In closing t a valve, the. operation mere;

cm the positibn df Fig. 5 turns stem 9 and ping 8'to closed yed to the nut positionsinoe'the stemis .y

l"=i'eversed." Clockwise movementof nut 17 Q ther clockwise rotation of the stem isfpre itself-in valve seat 2. Lug

passage 37 is provided through the bottom of the valve seat at 42 and the valve plu at 43.5

at i and cooperating openings in the casing at'45. P

ventedand. key 26 is forced from groove 32 into groove. 27, freeing nut 17 from the stem and locking thestem to the'yoke. The stem being held against rotation, continued clockwiserotation of nut 17 expelsthe stem from the nut, causing plug 3 to again firmly seat 28 may, for convenience in showing the position ofthe plug, be provided with a pointer 35. The valve plug may be jlubricate'd through the nut" and stem in a conventional manner, as indicated in dotted lines at 36. Preferably a small theplug to prevent pressure or an "air cushion building u beneath the plug.

In the modi ed form of Figs. 6 to 9, mclusive, the operating mechanism has been placed neath the cover of the valve casing. In the .latter figures, the valve casing is shown at-41,

The valve plug opening is indica Plug 43 is provided w th a stem 46 threaded as at 47 for engagement in operating nut 48. Nut 48 is formed with a. flan e 49 and is held aguainst axial movement by t e cover'plate 50 ch engages the upper side of flange 49 and annular member 52 which engages the underside of said flange. Member 52 'is rigidly.

clamped between the casin land the cover '50 by the-cov'er-bolts' 53. he up of" nut 48 extends outwardly o thQ'COVGI through 54 and packing follower-55 and is shaped to receive a wrench or other op .ei'ating tool.

key 65 'is'adapted to'isli e. en the valve-- An annular ring '56- is adapted to ,fit over an annular shoulder 57 fixed to or made integral with .theplug 43. Two or more semicircular grooves .58 are formed in shoulder 57 and a plurality'of similar grooves 59 are formed-on the inner face of ring 56. Ring 56 is keyed'to shoulder 57 by a pin 60 ositioned- 1n the circular opening forme by the re ration ofone of the grooves 58 and one o the grooves '59, the; spacing of these I ver usg es pro r rangeof adjustment of th'e position ing such-"as-to provide a 'z'rmgse withres I to lug"43.

,Ri'n .56is rovij ed wit two spaced lugs 63 de ning aike a 64in which a plug is in closed andseated position, key 65 (see Fi (7). engages in a groove 67 formed in mem r 52, thus holding ring 56 and plug 43, to which ring 56 is keyed, against rota:

7 .tion. As shown in Fig, 7', In 3 62 is .inengagement with" a stop pin 68 w an the valve.

plug is inclosed position. Flange-49 otnut 48-.carrigsi a downwarl'dlyxteiding in 1% 'tion toen'gege ,ug, incepug a stem 4'6 are held key 65, rotation of mit 48 m a counterclock- 'wiaedlrection (as viewed in Fig. 7) will act r portionrotation raising the valve ing of the plug ta 'ng shown in Fig. '8; At-the same time that pin 70 engages lug '62, a groove 71 formed in piling from its seat, this lift lace during substantially a quarter turn 0 the-nut or until pin 70, passing-over stop 68, engages lug 62,-as

nut 48 is positioned opposite the inner end of key 65 and continued rotation of the nut shown in Fig. 9) en'gages'stop pin .73 which defines theopen position of the valve plug. The slug is lubricated in any suitable manner as in icated at 75.

In closing the valve, the operation is merelfyreversed. Clockwise rotation of nut 48 rom the position of Fig. 9 turns the stem and plug to closed position defined by stop in 68. Pin 68 prevents furtherrotation of -the plug, and key 65 is forced from groove 71 into groove 67 of member 52, thus releasing the lug from the nut and again locking the p ug against rotation. Further clockwise movement of ni1t48 expels stem- 46 from the nut, causing the plug to again firmly seat itself. in the seat in valve seat 42. It will be apparent irom the two illustrative'forms ofthe invention above described that by providing an intermittent drive between the operating'nut and the stem of the valve plugi I mak it possible to positively unseat an to close the-valve and again firmly greseat the valve lug by simplyreversing the move 4 v anism where it is desired to axially move" or raiseand then turn one of the mating members.

WhatIclai mis.:' '1 A=valve which comprises a-valve casing, a valve; member having a, threaded stem, a

rotatable 'nut engaging the threads of the stem,;a. keywa'y movable with the valve mem-. her, a free key .slidably mounted in the sition to lock the stem and va ve member to the nut, means operativeht'a predetermined ke way and adapted in one position to lock tlie then 0 en'the valve by a simple rotary movement f the operating nut and;

ually applicable to pointin the rotation ofthe nut in one direction to compel the keyway to move with the nut to thereby force the key into posi.

tion to lock the stem and valve member 0;

the nut and means operative at said point-- upon reverse rotation-of the nut to key into position to the stem and valvemovement of the keym to thereby force the member to the casing and means to prevent axial movement ofthe nut when the stem and valve member are locked to the casing.

2. A valve which comprises a valve casing including a tapered valve seat, a rotatable valve plug fitting in the seat, a threaded stem fixed to the plug, a yoke supported by the valve casing, a rotatable nut engaging the threads of the stem and held against axial movement in theyoke, a collar fixed to the stem adjacent the base of the nut, spaced lugs secured to the collar and forming a keyway, a key slidably mounted in the-keyway, a key receiving groove formed in the yoke and positioned to register with one end of the keyway and to receive the key when th valve plug is in closed position, a key receiving groove formed in the nut and positioned to register with the other end of the keyway when the nut has been turned to draw the plug from its seat, a pin carried by the nut ada ted to engage ,one of the keyway lugs to orce the key from the groove in the collar into the groove in the nut to cause the plug to thereafter rotate with the nut to valve opening position, and a stop member secured-,to the collar and positioned to engage the yoke. upon the return oi the plug and nut to valve closing position to thereby force the key into the groove in .the yoke and permit the nut to return to its original position-to seat the plug.

' 3. A valve WhlOh comprises a valve'casing including a tapered valve seat, a rotatable valve plug fitting in the seat, a threaded stem v fixed to the plug a cover fixed to the casing,

an annular-mem r held between the cover and the casing, a rotatable nut engaging the threads of the stem and held against axial pin carried by the nut adapted to engage one movement between the cover and the annular member, a collar adjustably secured to the plug, spaced lugs secured to the collar and orming a keyway, a -ke y slidably mounted in the keywa ,.a key recelving groove formed signature.

- in the ann ar member andpositioned to register with one end of the keywa and to receive the key whenthe valve p u is in closed position a key receiving groove ormed vin the nut and positioned to register with theother end of the keyway-when the nut has ing means-to adjust the position of the keyway with respect to the valve member.

5. A valve which comprises a valve casing the threads of the stem and held against axial movement with respect to the casing,

'a keyway formed by spaced lugs held in fixed relation with the stem, afree key slidably mounted in the keyway, a key receiving groove formed in the casing structure and ositioned to register with one end of the eyway and to receive the key when the valve plug is in closed position, a key receiving groove formed in the nut and positioned to register with the other end ofthe keyway when the nut has been turned to draw the plug from its seat, means carried by the nut adafpted to engage one of the keyway lugs to orce the key from the groove in the collarinto the groove in the nut to cause the plug to thereafter rotate with the nut to open the valve, and a stop member carried by the stem and engageable with a fixed portion of the casing structure upon return of the plug and nut to valve closing position to thereby force the key into the ove in the casing structure, and permit t e nut to return to its original position to seat the valve.

6. .A valve which comprises a valve member having a threaded stem, a rotatable nut engaging the threads of the stem, means to hold the nut against axial movement so that free rotation of the nut" will draw the stem into the nut and thereby unseat the valve member connecting means ad'ustably mounted on the valve member to se ectively connect the valve member to. a stationary part of the valve or to the nut, and means to actuate said connecting means.

In testimony whereof I have afixed my JOHN E. JONES.

been turned to draw the plug from its seat, a

of the keyway lugs toforce the key from the groove in the annular memberinto the groove in the nut to cause the plug 'to'thereafter rotate with the nut to valve-opening position, and a stop member secured to the annular member and positioned to engage-one of the keyway lugs upon the return of the and nut' to valve closing position-to thereby force the key into the groove inthe annular member and permit the nut to return to its original position to seat the plug. 4. A valve structure as in claim 1 Includ-

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